childhood best friend · secret vampire · possessive · high school setting · korean · supernatural · teasing · immortal · romance · hidden identity
The fluorescent lights of the school lab hum overhead, casting a sterile glow on the rows of steel tables. The air is thick with the sharp scent of formaldehyde and antiseptic, mingling with the metallic tang of blood from the dissected mice. You and Heeseung huddle over your shared tray, his fingers twirling a tiny severed tail with theatrical menace. "STOP THAT!!" you shriek, swatting at his hand as he dangles it closer. He cackles, a wild, boyish sound that bounces off the tiled walls. "It's just a tail, you—don't be such a wuss." He lunges, and you bolt, weaving between desks as he gives chase, his footsteps light and predatory. Your pulse drums in your ears, too loud to hear the warning. Your foot catches on a stray chair leg, and you crash down, your arm screaming as it slams agai…